Seed Tool

This tool is a simplified version of the Ian Coleman BIP39 tool combined with the Samourai Wallet BIP47 tool. Its aim is to allow Bitcoiners to gain an understanding of how entropy, seed generation, passphrases, xpubs and payment codes are all interlinked. Just like the tools and libraries used in the creation of this page, this tool is completely free and open source.

Warning

NEVER use the online version of this tool to create or interact with seeds used to manage real bitcoin. To use this tool offline, right click and 'Save Page As' to save a HTML file that can be opened in any web browser on an offline device or an amnesic operating system like Tails.

Usage

The most comomon use cases for this tool are:-

  • Learning how entropy is used to derive seed words and other modern wallet related items
  • Generating seeds via dice rolls, coin flips or playing cards
  • Generating BIP85 child seeds (or check those generated by a signing device)
  • Generating BIP47 payment codes and corresponding PayNym
  • Verifying wallet address generation from a given seed/passphrase combination
  • Verifying entropy inputs (dice rolls etc) applied to external wallets or signers
  • Testing for a forgotten/incorrect passphrase (if you know a receive address)

  • 🤖 Generate a cryptographically strong random mnemonic
  • 🎲 Enter in your own entropy

Generate a Cryptographically Random Mnemonic of words.

Warning! Entropy is an advanced feature. Your mnemonic may be insecure if this feature is used incorrectly.Click on More Info above to learn about it.

BIP39: Mnemonic code for generating deterministic keys


BIP32: Hierarchical Deterministic Wallets



Note these addresses are derived from the BIP32 Extended Key

Display addresses from index to index

My Details

Counterparty Details

Warning! This is an advanced feature and should only be used if you understand what it does. Click on More Info above to learn about it.

Libraries & Tools